A hydrologist maneuvers an isokinetic sampler into position

USGS Hydrologist Dan Button maneuvers an isokinetic sampler into position prior to lowering it into Massies Creek, in Wilberforce, Ohio.

A new U.S. Geological Survey interactive data explorer is now available to help users visualize and download data used to better understand how stream ecology is affected by chemical and physical stressors in small streams across the United States.